A double helping of 2 Broke Girls led CBS to a Monday victory.The two episodes averaged 11.6 million viewers and a 4.0 in the adults 18-to-49 demographic, with the second episode easily improving on Mike & Molly's numbers last week. How I Met Your Mother (9 million, 3.3) and Hawaii Five-0 (10.4 million, 2.7) also grew. (A CBS affiliate in Houston pre-empted normal programming, which could affect the final ratings.)The Voice (12.1 million, 3.8) slipped a tad, while the premieres of Howie Mandel's game show Take It All (7.2 million, 2.2) andMichael Buble: Home for the Holidays (5.7 million, 1.4) did OK.